Finding the Third Proportional to 109,074 and 231,330

Step by Step Solution

1. Step 1: Write the proportion equation
   109,074 : 231,330 = 231,330 : x
2. Step 2: Convert to fraction form
   109,074/231,330 = 231,330/x
3. Step 3: Cross multiply
   109,074x = 231,330 × 231,330
4. Step 4: Simplify right side
   109,074x = 53,513,568,900
5. Step 5: Solve for x
   x = 53,513,568,900/109,074
6. Step 6: Final answer
   x = 490,617.09